Toy block



FIG. 1 is a front perspective view of a toy block embodying my design;

FIG. 2 is a rear perspective view of FIG. 1;

FIG. 3 is a top plan view of FIG. 1;

FIG. 4 is a side elevational view of FIG. 1;

FIG. 5 is a vertical view of FIG. 1; and,

FIG. 6 is a bottom view of FIG. 1. 

CLAIM I claim the ornamental design for a toy block, as shown and described. 